New York City police are beefing up security as higherlevel U.N. General Assembly meetings begin Monday.

General Assembly puts hefty burden on hosts

NEW YORK — Authorities in New York City are facing a security and logistical challenge of epic proportions with the coming arrival of President Donald Trump and other world leaders for the United Nations General Assembly.

Though there’s been no credible threats against the event, the security concerns are so broad that the New York Police Department has considered how it would stop assassins armed with poison or killer drones.

The NYPD’s main line of defense will be thousands of extra police officers flooding the streets as part of a carefully coordinated effort with the Secret Service and other federal and local law enforcement agencies, said Police Commissioner James O’Neill.

The 73rd Session of the General Assembly began Sept. 18, but the higher-level meetings start Monday.

Police said other preparations have included consultation with British authorities about the poisoning of a former Russian spy there earlier this year with a weapons-grade nerve agent. British officials say the attack was carried out by Russian operatives.

Police have also studied an attack on Venezuelan President Nicolas Maduro last month using drones rigged with explosives.

Maduro said this past week that he may have to suspend a planned trip to the United Nations because of concerns his opponents would try to kill him if he travels abroad.

Those foreign dignitaries flying state aircraft into New York’s Kennedy Airport will be greeted with strict enforcement of security rules requiring the planes to depart within two hours of touching down.

Trump is expected to arrive for a rare hometown visit and a possible stay at Trump Tower, his longtime home he has rarely visited since becoming president.